Voltage regulator...

[Mix01FLHT]

Is there a way to test the voltage regulator with out the bike running?  Anybody have any ideas what the numbers should be across the connections?  Stator is out, wanted to check before putting this thing back together. 


TIA

Mix

[Admiral Akbar]

sure.. You need an isolated power supply with current limit, programmable load, a DVM and current probe.
Max

[Mix01FLHT]

sure.. You need an isolated power supply with current limit, programmable load, a DVM and current probe.
Max

Ok, so I need a running motorcycle....   

[Mix01FLHT]

Ok, found what I was looking for.

For future reference if anyone needs this info:


Regulator Test: Each of the following tests isolates the regulator only, so if any of these tests fail, the regulator is at fault.

Identifying Wires:

Battery Charge Lead- Wire going from regulator to battery positive.

AC output leads- Wires coming from the Stator to regulator.

Ground- Wire from Regulator to ground or regulator may be grounded via the physical bolting to chassis.

Regulator Ground Test: Insure the regulator body is grounded or grounding wire is fastened tight to a good ground (you should verify this by checking continuity from regulator body to chassis ground).

Fwd/Reverse Bias Test/Diode Test: This check is testing the Diode function to ensure it is regulating the AC current for the stator into DC Current.

1 Switch multi meter to Diode Scale.
2 Place your Multi meter positive lead on each AC output wire.
3 Place your multi meter negative lead on the battery Charge wire.
4 The meter should read voltage typically around .5 volts.
5 Next, switch your multi meter leads putting the negative lead on the AC output wires and the Positive lead on the Battery Charge Wire.
6 The reading should be Infinite.
7 With your meter on the same setting, place your multi meter positive lead on the regulator ground wire or to the regulator directly, and then place your meter negative lead on the AC output leads.
8 The meter should read voltage typically around .5 volts.
9 Next, switch your multi meter leads putting the negative lead on the regulator ground and the Positive lead on the AC output wires.
10 The reading should be Infinite.

Note: Below is a table to show the readings:

Positive Lead                       Negative Lead                     Reading
AC output 1                        Battery charge lead            Voltage
AC output 2                        Battery Charge Lead           Voltage
Battery charge lead              AC output 1                         ∞
Battery charge lead              AC output 2                         ∞
Ground                               AC output 1                      Voltage
Ground                               AC output 2                      Voltage
AC output 1                        Ground                                ∞
AC output 2                        Ground                                ∞

[Admiral Akbar]

All you are doing there is checking the bridge rectum finder and not the regulator itself.. This is is better than nothing. It still doesn't check whether the the regulator is able to regulate.. Not sure how it works on series pass regulators either tho I think that most HD regulators are load dump shunt types..

Max

[barny7655]

just plug it into a mates bike ,and ground it ,check with volt metre , no more than 14.7 , and of course more than about 13.2 depending on his battery , turn lights on as well to get two readings , cheers barny